PROBLEM TO BE SOLVED: To provide a radiation detector which can be operated continuously, and a radiation image detection device.SOLUTION: A radiation detector includes: a housing 20 a detection section 10 being provided inside the housing 20 and detecting radiation a first power storage 51 connected to the detection section 10 a second power storage 70 being detachably provided on an outer surface of the housing 20 and connected to the detection section 10 and the first power storage 51 a first opening-closing switch 53 connected between the detection section 10 and the second power storage 70 a second opening-closing switch 54 connected between the first power storage 51 and the second power storage 70 a third opening-closing switch 55 connected between the detection section 10 and the first power storage 51 and a control section 52 for measuring at least one of a voltage and a current of the second power storage 70, and controlling the first opening-closing switch 53, the second opening-closing switch 54 and the third opening-closing switch 55 based on a value measured.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2018,JPO&INPIT【課題】連続稼働が可能な放射線検出器、および放射線画像検出装置を提供する。【解決手段】放射線検出器は、筐体20と、前記筐体20の内部に設けられた、放射線を検出する検出部10と、前記検出部10に接続された第1の蓄電部51と、前記筐20の外面に着脱自在に設けられ、前記検出部10および前記第1の蓄電部51と接続される第2の蓄電部70と、前記検出部10と前記第2の蓄電部70との間に接続された第1の開閉スイッチ53と、前記第1の蓄電部51と前記第2の蓄電部70との間に接続された第2の開閉スイッチ54と、前記検出部10と前記第1の蓄電部51との間に接続された第3の開閉スイッチ55と、前記第2の蓄電部70の電圧および電流の少なくともいずれかを測定し、前記測定された値に基づいて前記第1の開閉スイッチ53、前記第2の開閉スイッチ54、および前記第3の開閉スイッチ55を制御する制御部52と、を備える。【選択図】図6
